Add a naturally thick and volumized look with Toppik Hair Building Fibers. Set yourself worry free from issues of hair thinning and conceal those patchy areas with this hair building fiber. Keratin being the core ingredient which is identical to human hair protein blends effortlessly in your scalp and thus adds a natural look. You can also do root touch up with this product. Boast your look confidently, because come rain, wind, or perspiration the Hair Building Fiber from Toppik will not let you down anywhere! Adds natural thickness to the crown. Conceals hair loss and thinning areas. Contains keratin fibers that blends to skin and hair surface easily. Great hold in rain, wind, and perspiration.